Cam assembly of air jet loom

Abstract

The cam assembly comprises a main cam and an auxiliary cam, the main cam and the auxiliary cam are arranged in a conjugate mode, a main adjusting protruding block is arranged on the main cam, an auxiliary adjusting protruding block is arranged on the auxiliary cam, and the upper end face of the main adjusting protruding block and the upper end face of the auxiliary adjusting protruding block are both in a smooth shape. The main cam and the auxiliary cam are provided with position adjusting mechanisms used for controlling the relative positions of the main cam and the auxiliary cam. The cam structure solves the problem that a cam structure in the prior art is fixed and cannot be quickly adjusted to adapt to different weaving modes.

Description

Technical Field

[0001] The utility model relates to the technical field of looms, in particular to a cam assembly of an air-jet loom. Background Art

[0002] An air-jet loom is a shuttleless loom that uses a jet of air to draw the weft yarn through the shed. Its working principle is to use air as the weft-drawing medium, and use the compressed air jet to generate frictional traction on the weft yarn for traction, and bring the weft yarn through the shed to achieve the purpose of weft insertion. Air-jet looms are increasingly being used. First, mainly because of their high production efficiency, which can reach 800 revolutions per minute. Second, the quality is good, and the fabric base style is good, occupying the market with an absolute advantage in certain fabric base varieties.

[0003] For most loom manufacturers and garment fabric production enterprises, generally, twill fabrics are produced in the right-hand twill weave of 2-up 1-down, which is beneficial to the style of the garment fabric. The twill side, that is, the front side, is relatively plump. For the production of coated abrasives, the twill side of the fabric base is the printing surface, and the plain side is the abrasive-planting surface. As a result, the current air-jet looms are difficult to meet the requirements of the fabric base used for coated abrasives. To produce the fabric base for coated abrasives, a reverse weave of 1-up 2-down is required. In an air-jet loom, the function of the cam assembly is to control the up-and-down lifting of the conveying support frame, thereby controlling the weaving method. However, the existing cam structure is fixed and there is no way to quickly adjust by changing the cam structure to adapt to different weaving methods. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an air-jet loom to solve the above problems existing in the current air-jet loom.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A cam assembly of an air-jet loom includes a main cam and an auxiliary cam. The main cam and the auxiliary cam are conjugate. A main adjustment convex block is arranged on the main cam, and an auxiliary adjustment convex block is arranged on the auxiliary cam. The upper end surfaces of the main adjustment convex block and the auxiliary adjustment convex block are both smooth. A position adjustment mechanism for controlling the relative positions of the main cam and the auxiliary cam is arranged on the main cam and the auxiliary cam.

[0007] Further, the position adjusting mechanism includes a first arc groove, a second arc groove and a fastening device. The first arc groove is arranged on the main cam, and the radian of the first arc groove is consistent with that of the main adjusting convex block. The second arc groove is arranged on the auxiliary cam, and the radian of the second arc groove is consistent with that of the auxiliary adjusting convex block. The fastening device is arranged in the first arc groove and the second arc groove for fixing the relative positions of the main cam and the auxiliary cam.

[0008] Further, the fastening device includes a fixing bolt and a fixing nut. The fixing bolt is arranged through the first arc groove and the second arc groove, and the fixing nut is connected with the fixing bolt to fix the relative positions of the main cam and the auxiliary cam.

[0009] Further, first accommodation grooves for accommodating the fixing bolt are arranged on both side edges of the first arc groove, and second accommodation grooves for accommodating the fixing nut are arranged on both side edges of the second arc groove.

[0010] Further, a plurality of first accommodation grooves are provided, and the first accommodation grooves are arranged at intervals along the first arc groove. A plurality of second accommodation grooves are provided, and the second accommodation grooves are arranged at intervals along the second arc groove.

[0011] Further, a driving shaft is arranged on the main cam.

[0012] Advantages of the utility model:

[0013] For the cam assembly of the air-jet loom of the utility model, by arranging the position adjusting mechanism, the relative positions between the main cam and the auxiliary cam can be adjusted, so as to change the rhythm of the support rising of the conveying support frame, enabling the air-jet loom to quickly adapt to different weaving requirements, greatly improving the flexibility and adaptability of the equipment. The upper end surfaces of the main adjusting convex block and the auxiliary adjusting convex block are designed to be smooth, which not only ensures the smoothness during rotation but also reduces wear, thus prolonging the service life of the equipment. Since the cam assembly can be quickly and accurately adjusted to a position suitable for different weaving methods, different fabric bases can be woven according to requirements, meeting the needs of producing coated abrasives. Description of the drawings

[0014] Figure 1 is a schematic structural diagram of one state of the cam assembly of the air-jet loom of the utility model;

[0015] Figure 2 is a schematic structural diagram of another state of the cam assembly of the air-jet loom of the utility model;

[0016] Figure 3 is Figure 2Structural schematic diagram from another angle.

[0017] Names corresponding to each mark in the figure:

[0018] Main cam 1, main adjusting convex block 11, first arc-shaped groove 12, first receiving groove 13, drive shaft 14, auxiliary cam 2, auxiliary adjusting convex block 21, second arc-shaped groove 22, second receiving groove 23, fastening device 3, fixing bolt 31, fixing nut 32. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0020] The present utility model provides a cam assembly for an air-jet loom, aiming to solve the problem that the cam structure in the prior art is fixed and cannot be quickly adjusted to adapt to different weaving methods. The present utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Embodiment 1:

[0022] As Figure 1 shown, this embodiment provides a cam assembly for an air-jet loom, which includes a main cam 1 and an auxiliary cam 2. The main cam 1 and the auxiliary cam 2 are conjugated to ensure the coordination during the rotation process. The main cam 1 is designed with a main adjusting convex block 11, while the auxiliary cam 2 is provided with an auxiliary adjusting convex block 21. The upper end surfaces of these two adjusting convex blocks are designed to be smooth to ensure smoothness during rotation and reduce wear.

[0023] To realize the relative position adjustment between the main cam 1 and the auxiliary cam 2, as Figure 2 and Figure 3 shown, a position adjustment mechanism is designed. The position adjustment mechanism includes a first arc-shaped groove 12, a second arc-shaped groove 22, and a fastening device 3. The first arc-shaped groove 12 is provided on the main cam 1, and its radian matches the radian of the main adjusting convex block 11; similarly, the second arc-shaped groove 22 is provided on the auxiliary cam 2, and its radian is consistent with the radian of the auxiliary adjusting convex block 21.

[0024] The fastening device 3 is arranged through these two arc-shaped grooves to fix the relative positions of the main cam 1 and the auxiliary cam 2. Specifically, the fastening device 3 includes a fixing bolt 31 and a fixing nut 32. In actual operation, the relative angle between the main cam 1 and the auxiliary cam 2 can be changed by adjusting the position of the fixing bolt 31 in the first arc-shaped groove 12 and the second arc-shaped groove 22, so as to realize different weaving methods.

[0025] Embodiment 2:

[0026] Based on Embodiment 1, asFigure 3 As shown, in this embodiment, the design of the fastening device 3 is further refined. Specifically, first receiving grooves 13 for receiving fixing bolts 31 are added to both side edges of the first arc-shaped groove 12, and second receiving grooves 23 for receiving fixing nuts 32 are added to both side edges of the second arc-shaped groove 22. Such a design not only improves the stability of the fastening device 3 but also makes the adjustment process more convenient and rapid.

[0027] To further increase the flexibility of adjustment, a plurality of first receiving grooves 13 and second receiving grooves 23 are provided, and they are respectively distributed at intervals along the first arc-shaped groove 12 and the second arc-shaped groove 22. In this way, the operator can select the most suitable fixing points from multiple positions according to actual needs, thereby achieving more precise adjustment.

[0028] Embodiment Three:

[0029] Based on Embodiment Two, as Figure 1 shown, in this embodiment, a driving shaft 14 is added to the main cam 1. This design enables the cam assembly to be more conveniently connected and driven to other parts of the air-jet loom, thereby improving the operating efficiency and stability of the overall machine.

[0030] During actual use, after connecting the driving shaft 14 to an external driving device, the rotation of the main cam 1 and the auxiliary cam 2 can be controlled, so that the up-and-down lifting control of an external conveying support frame can be performed through the main adjusting convex block 11 and the auxiliary adjusting convex block 21 fixedly installed at its upper end. Since the upper end surfaces of the auxiliary adjusting convex block 21 and the main adjusting convex block 11 are both set to be smooth, the overall arc length of the rotated auxiliary adjusting convex block 21 and main adjusting convex block 11 increases. Thus, the support period and time of the external conveying support frame by the control and adjustment device can be quickly controlled, and the raised parts for support on the device increase. During use, the time for the support of the external conveying support frame to rise by the control and adjustment device can be quickly adjusted by adjusting the size of the raised distribution on the device, thereby changing the weaving method.

[0031] Through the detailed description of the above-mentioned reference numerals and embodiments, it can be seen that the cam assembly of the air-jet loom provided by the present utility model not only has a novel structure and reasonable design, but also has the advantages of flexible adjustment and convenient use, etc., and can improve the adaptability of the air-jet loom.

[0032] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model fall within the protection scope of the present utility model.

Claims

1. A cam assembly for an air jet loom, characterized in that: It includes a main cam and an auxiliary cam, the main cam and the auxiliary cam are conjugately arranged, the main cam is provided with a main adjustment protrusion, the auxiliary cam is provided with an auxiliary adjustment protrusion, the upper end surfaces of the main adjustment protrusion and the auxiliary adjustment protrusion are both smooth, and the main cam and the auxiliary cam are provided with a position adjustment mechanism for controlling the relative position of the main cam and the auxiliary cam.

2. The cam assembly of the air jet loom according to claim 1, characterized in that: The position adjustment mechanism includes a first arcuate groove, a second arcuate groove and a fastening device, the first arcuate groove is arranged on the main cam, the curvature of the first arcuate groove is consistent with the curvature of the main adjustment protrusion, the second arcuate groove is arranged on the auxiliary cam, the curvature of the second arcuate groove is consistent with the curvature of the auxiliary adjustment protrusion, and the fastening device is arranged in the first arcuate groove and the second arcuate groove, and is used to fix the relative position of the main cam and the auxiliary cam.

3. The cam assembly of the air jet loom according to claim 2, characterized in that: The fastening device includes a fixing bolt and a fixing nut. The fixing bolt is arranged through the first arc groove and the second arc groove. The fixing nut is connected to the fixing bolt to fix the relative positions of the main cam and the auxiliary cam.

4. The cam assembly of the air jet loom according to claim 3, characterized in that: The two side edges of the first arc-shaped groove are provided with first receiving grooves for receiving the fixing bolts, and the two side edges of the second arc-shaped groove are provided with second receiving grooves for receiving the fixing nuts.

5. The cam assembly of the air jet loom according to claim 4, characterized in that: A plurality of the first accommodating grooves are provided, and the first accommodating grooves are arranged at intervals along the first arc-shaped groove. A plurality of the second accommodating grooves are provided, and the second accommodating grooves are arranged at intervals along the second arc-shaped groove.

6. The cam assembly of the air jet loom according to claim 5, characterized in that: A driving shaft is arranged on the main cam.

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